I have a 92 kdx and I'm on my 3rd gas tank now but I think this one, which is 8 years old will last. I bought the bike new in 92 ,then during the winter of 94 I walked in the shop and gas was everywhere. It had been idle for a couple of months and cracked on it's own. It cracked around the petcock mounting holes at the base of the tank. I called the kaw dealer where I knew the parts man but no one could offer any replacement info. They just shook their head and said " man, that's going to be expensive because there are no tanks made outside kawasaki." They did sell me a tank at dealer cost instead if the $325 list price. Well, it lasted 3 years and cracked in the same area. I called kaw customer service and end up talking to someone in California. He said it was probably oxygenated gas that some states have, that caused the crack. He did finally admitt( in a round aboutway) they did have a problem with this type tank. He said sometimes they will crack around the gas cap area, also. In the end, he did agree to send me a tank and it has lasted ever since. So call, call and call some more. Kaw may never admitt it but it is a known problem. Hope this helped! Moto